96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
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/************************************************************//**
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*
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* @file: io.c
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* @author: Martin Fouilleul
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* @date: 09/05/2023
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*
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*****************************************************************/
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#include"io.h"
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#include"io_stubs.c"
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//------------------------------------------------------------------------------
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// File stream read/write API
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//------------------------------------------------------------------------------
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file_handle file_open(str8 path, file_open_flags flags)
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{
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io_req req = {.op = IO_OP_OPEN,
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.size = path.len,
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.buffer = path.ptr,
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.openFlags = flags};
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io_cmp cmp = io_wait_single_req(&req);
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//WARN: we always return a handle that can be queried for errors. Handles must be closed
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// even if there was an error when opening
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file_handle handle = { cmp.result };
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return(handle);
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}
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void file_close(file_handle file)
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{
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io_req req = {.op = IO_OP_CLOSE,
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.handle = file};
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io_wait_single_req(&req);
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}
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size_t file_size(file_handle file)
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{
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io_req req = {.op = IO_OP_SIZE,
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.handle = file};
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io_cmp cmp = io_wait_single_req(&req);
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return((size_t)cmp.result);
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}
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size_t file_pos(file_handle file)
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{
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io_req req = {.op = IO_OP_POS,
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.handle = file};
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io_cmp cmp = io_wait_single_req(&req);
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return((size_t)cmp.result);
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}
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size_t file_seek(file_handle file, long offset, file_whence whence)
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{
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io_req req = {.op = IO_OP_SEEK,
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.handle = file,
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.size = offset,
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.whence = whence};
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io_cmp cmp = io_wait_single_req(&req);
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return((size_t)cmp.result);
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}
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size_t file_write(file_handle file, size_t size, char* buffer)
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{
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io_req req = {.op = IO_OP_WRITE,
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.handle = file,
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.size = size,
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.buffer = buffer};
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io_cmp cmp = io_wait_single_req(&req);
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return((size_t)cmp.result);
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}
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size_t file_read(file_handle file, size_t size, char* buffer)
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{
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io_req req = {.op = IO_OP_READ,
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.handle = file,
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.size = size,
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.buffer = buffer};
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io_cmp cmp = io_wait_single_req(&req);
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return((size_t)cmp.result);
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}
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int file_error(file_handle file)
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{
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io_req req = {.op = IO_OP_ERROR,
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.handle = file};
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io_cmp cmp = io_wait_single_req(&req);
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return((int)cmp.result);
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}
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